Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.

Determine if the c (RH4) antigen is expressed on the patient's red blood cells. To determine if the patient is heterozygous or homozygous for the c antigen, C Antigen Typing - Patient (2007933) should also be ordered.

MnemonicUnique test identifier.

C LITTLEAG

MethodologyProcess(es) used to perform the test.

Hemagglutination

PerformedDays of the week the test is performed.

Mon-Fri

ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.

1-3 days

New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.

This test is New York DOH approved.

Specimen Required

Patient Preparation

Collect

Lavender (K2EDTA) or Pink (K2EDTA).

Specimen Preparation

Do not freeze. Transport 7 mL whole blood. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Separator tubes.

Remarks

Stability

Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Unacceptable

Reference IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.

CPT CodesThe American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.

* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.